THREADINFO Compatibility Flags

The THREADINFO,
CLIENTINFO and, in version 4.0, the
PROCESSINFO structures
share a set of bit flags as their dwCompatFlags member.
Type information in symbol files for WIN32K.SYS in Windows 7 (only) enumerates the
defined flags as UINT bit fields for their appearance
in the THREADINFO.

It seems unlikely that I shall ever attempt an enumeration of which flags are
defined in which versions, but you never know.

Mask

Definition

Versions

0x00000001

UINT IgnoreNoDiscard : 1;

0x00000002

UINT ForceTextBand : 1;

0x00000004

UINT UsePrintingEscape : 1;

0x00000008

UINT IgnoreTopMost : 1;

0x00000010

UINT CallTTDevice : 1;

0x00000020

UINT MultipleBands : 1;

0x00000040

UINT AlwaysSendSyncPaint : 1;

0x00000080

UINT EditSetTextMunge : 1;

0x00000100

UINT MoreExtraWndWords : 1;

0x00000200

UINT TTIgnoreRasterDupe : 1;

0x00000400

UINT HackWinFlags : 1;

0x00000800

UINT DealyHwndShakeChk : 1;

0x00001000

UINT EnumHelv : 1;

0x00002000

UINT EnumTTNotDevice : 1;

0x00004000

UINT SubtractClips : 1;

0x00008000

UINT ForceTTGrapchis : 1;

0x00010000

UINT NoHRGN1 : 1;

0x00020000

UINT NcCalcSizeOnMove : 1;

0x00040000

UINT SendMnuDblClk : 1;

0x00080000

UINT Win30AvgWidth : 1;

0x00100000

UINT GetDeviceCaps : 1;

0x00200000

UINT Winver31 : 1;

0x00400000

UINT IncreaseStack : 1;

0x00800000

UINT Win31DevModeSize : 1;

0x01000000

UINT DisableFontAssoc : 1;

0x02000000

UINT IgnoreFaults : 1;

0x04000000

UINT NoEMFSpooling : 1;

0x08000000

UINT Random31Ux : 1;

0x10000000

UINT DontJournalAttach : 1;

0x20000000

UINT DisableDBCSProp : 1;

0x40000000

UINT SmoothScrolling : 1;

0x80000000

UINT NoScrollBarCtxMenu : 1;

The misspelling DealyHwndShakeChk is Microsoft’s.

This page was created on 30th July 2017 but was not published
until 6th August 2017.